71295490 has 24 divisors (see below), whose sum is σ = 149285052. Its totient is φ = 24444000.

The previous prime is 71295487. The next prime is 71295503. The reversal of 71295490 is 9459217.

It can be written as a sum of positive squares in 2 ways, for example, as 70207641 + 1087849 = 8379^2 + 1043^2 .

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 72261 + ... + 73240.

Almost surely, 2^71295490 is an apocalyptic number.

71295490 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

71295490 is an abundant number, since it is smaller than the sum of its proper divisors (77989562).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71295490 is a wasteful number, since it uses less digits than its factorization.

71295490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145522 (or 145515 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 37.

The square root of 71295490 is about 8443.6656731540. The cubic root of 71295490 is about 414.6554259844.

The spelling of 71295490 in words is "seventy-one million, two hundred ninety-five thousand, four hundred ninety".